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<head><meta charset="utf-8"><title>General floating point formatting in Debug with {:g?} · t-libs · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/index.html">t-libs</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/General.20floating.20point.20formatting.20in.20Debug.20with.20.7B.3Ag.3F.7D.html">General floating point formatting in Debug with {:g?}</a></h3>

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<a name="241332193"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/General%20floating%20point%20formatting%20in%20Debug%20with%20%7B%3Ag%3F%7D/near/241332193" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jane Lusby <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/General.20floating.20point.20formatting.20in.20Debug.20with.20.7B.3Ag.3F.7D.html#241332193">(Jun 02 2021 at 23:26)</a>:</h4>
<p>does <a href="https://github.com/rust-lang/rfcs/pull/2729">https://github.com/rust-lang/rfcs/pull/2729</a> still need an RFC if we're changing it to just be a change to the default output of Debug?</p>



<a name="241332208"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/General%20floating%20point%20formatting%20in%20Debug%20with%20%7B%3Ag%3F%7D/near/241332208" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jane Lusby <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/General.20floating.20point.20formatting.20in.20Debug.20with.20.7B.3Ag.3F.7D.html#241332208">(Jun 02 2021 at 23:26)</a>:</h4>
<p>I'm guessing no but I want to confirm before I tell the author that they don't need to keep worrying about the RFC</p>



<a name="241332210"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/General%20floating%20point%20formatting%20in%20Debug%20with%20%7B%3Ag%3F%7D/near/241332210" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Josh Triplett <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/General.20floating.20point.20formatting.20in.20Debug.20with.20.7B.3Ag.3F.7D.html#241332210">(Jun 02 2021 at 23:26)</a>:</h4>
<p><span class="user-mention" data-user-id="220273">@Jane Lusby</span> I don't think it'd need an RFC in that case, but I <em>do</em> think it'd need a full team FCP and a relnote.</p>



<a name="241332217"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/General%20floating%20point%20formatting%20in%20Debug%20with%20%7B%3Ag%3F%7D/near/241332217" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jane Lusby <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/General.20floating.20point.20formatting.20in.20Debug.20with.20.7B.3Ag.3F.7D.html#241332217">(Jun 02 2021 at 23:26)</a>:</h4>
<p>yea</p>



<a name="241332218"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/General%20floating%20point%20formatting%20in%20Debug%20with%20%7B%3Ag%3F%7D/near/241332218" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jane Lusby <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/General.20floating.20point.20formatting.20in.20Debug.20with.20.7B.3Ag.3F.7D.html#241332218">(Jun 02 2021 at 23:26)</a>:</h4>
<p>that's what I figured</p>



<a name="241332222"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/General%20floating%20point%20formatting%20in%20Debug%20with%20%7B%3Ag%3F%7D/near/241332222" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jane Lusby <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/General.20floating.20point.20formatting.20in.20Debug.20with.20.7B.3Ag.3F.7D.html#241332222">(Jun 02 2021 at 23:26)</a>:</h4>
<p>but we can FCP the impl PR</p>



<a name="241332225"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/General%20floating%20point%20formatting%20in%20Debug%20with%20%7B%3Ag%3F%7D/near/241332225" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Josh Triplett <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/General.20floating.20point.20formatting.20in.20Debug.20with.20.7B.3Ag.3F.7D.html#241332225">(Jun 02 2021 at 23:26)</a>:</h4>
<p><span aria-label="+1" class="emoji emoji-1f44d" role="img" title="+1">:+1:</span></p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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